Finding the Third Proportional to 1,276.70 and 1,906.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,276.70 : 1,906.98 = 1,906.98 : x
2. Step 2: Convert to fraction form
   1,276.70/1,906.98 = 1,906.98/x
3. Step 3: Cross multiply
   1,276.70x = 1,906.98 × 1,906.98
4. Step 4: Simplify right side
   1,276.70x = 3,636,574.51
5. Step 5: Solve for x
   x = 3,636,574.51/1,276.70
6. Step 6: Final answer
   x = 2,848.42